// Copyright 2021 Matrix Origin
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package bitmap

type Iterator interface {
	HasNext() bool
	Next() uint64
	PeekNext() uint64
}

type Bitmap struct {
	count int64 //in version 1, we use emptyFlag with type int32 to indicate whether it is empty
	len   int64
	data  []uint64
}

type BitmapIterator struct {
	i        uint64
	bm       *Bitmap
	has_next bool
}
